Mahabharata 13.29.10

ततः षष्टिगुणे काले लभते ब्रह्मबन्धुताम्ब्रह्मबन्धुश्चिरं कालं तत्रैव परिवर्तते

tataḥ ṣaṣṭiguṇe kāle labhate brahmabandhutāmbrahmabandhuściraṃ kālaṃ tatraiva parivartate

Our plain-language meaning of this verse is waiting for scholar review.